421105533 has 8 divisors (see below), whose sum is σ = 562778496. Its totient is φ = 280084800.

The previous prime is 421105513. The next prime is 421105541. The reversal of 421105533 is 335501124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421105533 - 2¹² = 421101437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421105513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161548 + ... + 164133.

It is an arithmetic number, because the mean of its divisors is an integer number (70347312).

Almost surely, 2^421105533 is an apocalyptic number.

It is an amenable number.

421105533 is a deficient number, since it is larger than the sum of its proper divisors (141672963).

421105533 is a wasteful number, since it uses less digits than its factorization.

421105533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326115.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 421105533 is about 20520.8560493952. The cubic root of 421105533 is about 749.5437420501.

Adding to 421105533 its reverse (335501124), we get a palindrome (756606657).

The spelling of 421105533 in words is "four hundred twenty-one million, one hundred five thousand, five hundred thirty-three".